Ultra wideband antenna

Details Ultra wideband antenna Ultra wideband antenna

H - Electricity

01

Q

H01Q 9/04 (2006.01) H01Q 1/00 (2006.01) H01Q 1/27 (2006.01) H01Q 1/38 (2006.01)

Patent

CA 2435830

An ultra-wideband antenna for operating in a frequency is disclosed wherein a monopole antenna extends from a ground plane. The monopole has an effective, length L of one quarter wavelength at the lowest frequency f1. A dielectric resonator antenna (DRA) surrounds the monopole antenna for resonating at substantially between or at two and three times the lowest frequency f1. the DRA is of a height of less than 3/4L and is disposed in such a manner as being above the ground plane and either contacting or spaced therefrom by a gap G, wherein 0 <= G <= 0.2H. The ultra-wideband antenna is of a much greater bandwidth than the sum of bandwidth of the monople or the DRA alone.

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